IPA FISIKA : tekanan udara ..... menghisap air || percobaan praktek sederhana

Summary

In this engaging demonstration, the experiment shows how air pressure and oxygen levels can influence a candle's flame. A glass plate is placed on a surface, water is poured into it, and a candle is lit. When the candle is covered with a clear glass, it goes out due to the lack of oxygen. The reduced oxygen inside the glass causes the air pressure to drop, making the outside air pressure higher. This difference in pressure forces the water into the glass, visually illustrating the effects of air pressure in a simple yet effective way.

Takeaways

• 😀 A glass plate, matches, candles, and a colored liquid are used in the experiment.
• 🎥 The experiment begins with placing a film on the glass plate and pouring colored water onto it.
• 🕯️ A candle is lit and placed on the glass plate.
• 🥄 The candle is covered with a clear glass, which is an important step in the experiment.
• 🔥 The candle goes out once covered with the glass due to the depletion of oxygen inside.
• 🌬️ The absence of oxygen causes the air pressure inside the glass to become lower than the surrounding air pressure.
• 💨 The difference in air pressure leads to air being pushed from outside into the glass.
• 💧 As the air moves inside, the colored water around the glass is sucked into it.
• 🔍 This experiment demonstrates the effect of air pressure on water movement.
• 🧪 The experiment showcases fundamental physics concepts like air pressure, oxygen, and fluid dynamics.

Q & A

What materials are required for the experiment described in the script?

The materials needed are a glass plate, matches, candles, clear glass, colored water, and optionally, a film to cover the plate.

Why does the candle go out when the glass is placed over it?

The candle goes out because there is no oxygen inside the glass, and the candle requires oxygen to keep burning. The glass traps the oxygen inside, causing the flame to extinguish.

How does air pressure play a role in this experiment?

Air pressure plays a key role in the experiment because when the oxygen is consumed inside the glass, the air pressure inside becomes lower than the air pressure outside, causing the external air pressure to push water into the glass.

What happens to the water around the glass when the candle is covered?

When the candle is covered, the water around the glass is sucked into the glass due to the difference in air pressure. The lower pressure inside the glass draws the water in.

What does the colored water in the plate demonstrate in this experiment?

The colored water is used to visibly demonstrate the movement of water being sucked into the glass as a result of the change in air pressure.

What is the scientific explanation for the water being drawn into the glass?

The scientific explanation is that when the candle consumes the oxygen inside the glass, the air pressure inside becomes lower than the outside air pressure. This difference in pressure causes the surrounding air pressure to push water into the glass.

Why is oxygen important for the candle's flame?

Oxygen is necessary for combustion. The candle flame requires oxygen to continue burning. Without enough oxygen, the flame will be extinguished.

What does this experiment illustrate about the properties of air and gases?

This experiment illustrates how gases, like the air, behave under different pressures. It shows that gases will move from areas of higher pressure to areas of lower pressure, causing observable effects such as water being sucked into the glass.

Why is it important to use a clear glass in this experiment?

The clear glass is important because it allows the observer to clearly see the changes occurring inside, such as the extinguishing of the candle and the movement of the water due to pressure differences.

What role does the film play in this experiment, if used?

If used, the film may help to keep the water contained within the plate and prevent any spillage, ensuring that the focus remains on the changes occurring within the experiment.